I agree with most all the advice you have been given here. Long story short is that any gobble after 9 a.m. is something you want to be patient with. If he does not gobble for 15 or 20 minutes, you can bet he has what he wants within sight - a hen. You really need another gobble within 30 minutes or you just need to move on and try to start something else. If either space or birds are limited in your location, I recommend as many have that you wait it out. He will gobble again at some point and that's when you can make a decision to move closer or just keep walking down the road and get something else going.